The factory worker, who is portrayed by 38-year-old actress Katy Cavanagh, is currently having a fling with teacher Brian Packham (Peter Gunn). However, her integrity is due to be doubted when she breaks her "happy" news to him.
According to the Daily Star, viewers will see Julie's happiness at her potential pregnancy when she tells her sister Eileen Grimshaw, played by Sue Cleaver.
However, Brian becomes convinced that Julie has cheated on him, as he confesses to Ken Barlow (Bill Roache) that he can't be the father because he had a vasectomy three years ago.
Cavanagh recently revealed that she gets a lot of attention from "slightly older" male fans, saying: "It's really weird, but I always get men over the age of 40 coming up to me and saying, 'I love Julie, I love Julie'. Not the wives - it's always the husbands who are fond of her.
"I get lots of lorry drivers talking to me, too. And I get fan mail from men as well. I had a really lovely poem from a man who was slightly in love with Julie. He must have been over 60 and it was really nice."
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